randomizare.cpp: In function 'int main()': randomizare.cpp:10: warning: unused variable 'n' randomizare.cpp:10: warning: unused variable 'm' randomizare.cpp:8: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result randomizare.cpp:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result randomizare.cpp:12: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result randomizare.cpp:13: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result randomizare.cpp:15: warning: ignoring return value of 'char* gets(char*)', declared with attribute warn_unused_result randomizare.cpp:17: warning: ignoring return value of 'char* gets(char*)', declared with attribute warn_unused_result /tmp/cc9pqmpN.o: In function `main': randomizare.cpp:(.text+0x8d): warning: the `gets' function is dangerous and should not be used.